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----
-layout: post
-title: 前端性能优化小记
-tag: [js performance]
----
-
-> 几个前提概念
->* 浏览器是多进程的
->*
-### 浏览器内核模型
-
-
-### JS进程模型
-
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+---
+layout: post
+title: 前端性能优化小记
+tag: [js performance]
+---
+
+>已知
+>* 浏览器是多进程的
+>* 每个tab页是单独的一个render进程
+
+### 浏览器内核模型
+
+
+### render进程
+
+
+* 常说的JS单线程模型其实是指的单个render进程内的JS引擎
+* * JS引擎中最重要的 event loop模型
+
+
+
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